Road machine



`Feb. 24, 1931. w. T. EEATTY 1,793,568

ROAD MACHINE Filed Feb. '7, 1929 2 Sheets-Sheet l Feb.' g4? 1931.

W. T, BEATTY ROAD MACHNE FiledFeb.

'7, 1929 2 Sheets-Sheet 2' Patented Feb. Z4, 1931 UNITED STATES PATENT orifice WILLIAM T. BEATTY, OF CHICAGO, ILLINOIS, ASSIGNOR TO AUSTIN MANUFACTURIN CO., OF HARVEY, ILLINOIS, A CORPORATION OF ILLINOIS ROAD MACHINE Application led February 7, 1929. Serial No. 338,223.

This invention relates to road machines and more particularly to an automotive road machine or grader provided with a pair of supporting frames, one of said frames being adapted to support the power plant or engine and the other to support the road working tool and blade mechanism.

Among the object-s of my invention are to provide a construction of road machine in which all the blade lifting, shitting and reversing inefhanism is attached to a frame on the machine, independent of the power plant or engine supporting trame; further to provide a novel construction of blade supporting and engine supporting frames, each frame being connected directly to the tractor axle housing and at the front end by the front axle casting in a manner which permits the entire removal of either frame without disturbing the other; further to provide a novel construction of blade supporting and engine supporting frames whereby the vibrations and shocks set up by the action of the road working tool are not transmitted directly to the tractor, thus greatly lessening the danger of breakage of the tractor body and increasing the life of the frame; further to provide a str ucture of maximum simplicity, eiiciency,

economy and ease of operation; and such turter objects, advantages and capabilities as will later more fully appear.

My invention further resides in the combination, construction and arrangement of parts illustrated in the accompanying drawings, and while I have shown therein a preferred embodiment, I desire it to be understood that the same is susceptible of modification and change, without departing from the spirit of my invention.

4 In the drawings v Fig. 1 is a view in side elevation of my novel construction'of road machine;

Fig. 2 is atop plan view of my novel road working machine;

Figs. 3 and 4 are fragmentary vertical cross sectional views taken on the lines 3 and 4 of Fig. 2. 1

Referring to the embodiment set forth in the drawings, the road traversing part of the mechanism comprises a pair of front steerthe housing 7 of the rear axle. A. tractor or prime mover 8 is mounted upon the frame at 9, 9 and upon the rear axle and housing. Bracket members 10,510 connect the housing 7 with the frame 5 by means of bolts 11.

A second or outer elongated arched frame 12 is connected at its front end to the front axle casting 6 and at its rear end to the housing 7 of the rear axle, the connecting means on the rear axle comprising bracket member 13, 13 connecting the housing 7 with the frame 12 by means of bolts 11.

Located below the arched frames 5 and 12 is provided a triangular frame 15 floating on a horizontal pivot pin 16, this construction allowing for the rotation of the forward end of the frame 15 so as to permit the sides of the blade and frame to be raised and lowered by the operator at will. Rotatably mounted on the underside'of the frame 15 is a horizontal blade supporting wheel 17. A. pair of pivotal connections 18, to which are attached vertically extending rods or arms 19 are mounted on a cross bar 20 and attached thereto by means of brackets 21. The rods or arms 19 are attached at their upper end to pivotal connections 22 upon bracket members 23, each rod 19 and pivotal connection 22 being mounted on a shaft 24, one on each side of a machine. This construction provides a crank for raising or lowering either or both sides of the frame 15, since the cross bar 20 is attached to the underside of this frame. Mounted on each-side of the machine and on each of the shafts 24 in the housing 25 are provided worm gear mechanisms (not shown) which mechanisms are adapted to be rotated by means of hand wheels 26. 'These hand wheels are mounted on each side of the frame or machine for the raising or lowering oi' the blade carrying frame and supporting wheel.

In order that the operator may change the angularity of the blade or road working tool across the road traversed or transverse to the longitudinal aX1s of the machine, I provide `the mechanism with a hand wheel 27 mounted vhouse a polygonal shaft 31, so that the member 30 and shaft 31 are relatively slidable,

but adapted to rotate in unison. Connected to the lower end of the shaft 31 by means of a universal joint 32 is a shaft 33 for rotating a bevel gear 34. The bevel gear 34 meshes with a second bevel gear 35` mounted upon a vertical shaft 36. A housin or gear casing -37 house the bevel gears, t e casing being suitably braced on the triangular frame 15.

A spur gear 38 is mounted on the shaft 36 and is adapted to mesh with teeth 39 on thc inner circumference of the wheel 17. This construction allows for the operation and rotation of the wheel 17 to cause the desired adjustment of the blade regardless of whatever adjustments of the blade are present. Mounted below the frame 15 and wheel 17, is a grader blade or other road working tool 40, which is adapted to be rotated and raised or lowered into various operative positions by means of the operating mechanism. This road working tool 40 is mounted on arms or bracket members 41 pivotally attached to the circle, and to the rear of the tool by means of connections 42.

Whenever it is desired to shift the frame 15 laterally or crosswise of the road or ofthe longitudinal axis of the machine, such lateral adjustment may be readily accomplished by means of a hand wheel 43 rotating a shaft 44 having at its lower end a bevel gear 45 meshing with the bevel gear 46 mounted on a' threaded shaft 47. This threaded shaft passes into a threaded nut 48 which is pivotat 16. The threaded shaft 47 and nut 48 are self-locking and hold the parts in adjusted position preventing any displacement thereof except by manual operation.

Themeans for steering the road machine comprises a hand Wheel 50 adapted to rotate a shaft 51. This shaft actuates gear mechanism 52 which .in turn meshes with an arcuate rack 53 and rotates the same. The arcuate rack.53 is mounted on the front axle housing and 'when rotated, will turn the wheels at any desired angle.

From the above detailed description'and the drawings, it will be readily seen that I have provided a construction of road machine which is .provided with a dual frame having one frame for supporting the front end of the tractor and another frame for snpporting and controlling the road working tool and its various operating mechanisms.

The frames are entirely independent of each other, each one being supported at its rear end by the tractor axle housing, and at its front end by the front axle casting in a manner which permits the entire removal of either frame without disturbing the other. The blade lift, blade side shaft, and blade reverse mechanisms are connected only to the blade supporting frame. Thus any vibrations from the blade or road working tool will not be transmitted directly to the tractor or power plant. Also the vibrations and shocks set up by the engine or power plant will not be transmitted directly to the road working tool and its associated mechanism.

Having thus disclosed my invention,

I claim:

1. In an automotive road machine provided with front steering wheels and rear drive wheels, a road working implement therefor, operating mechanism for said implement, a frame for supporting the power plant of said road machine and extending from the front to the rear of the machine, and a second frame for supporting said operating mechanism.

2. In an automotive road machine provided with front steering wheels and rear drive wheels, a road working implement therefor, operating mechanism for-said implement, and a pair of independently and removably mounted frames for said machine, one of said frames supporting the power plant of said machine and the other supporting said operating mechanism. t

3. In an automotive road machine provided with front steering wheels and rear drive wheels, a road working im lement therefor, a power plant located at t erear of said machine, mechanism for operatin said implement, a pair of elongated, arche frames mounted at the front and rear of said machine, one of said frames supporting said power plant and the other supporting said operating mechanism.

4. In a road machine provided with front steering wheels, rear drive wheels and a road working tool located therebetween, a power plant for driving said machine, means for steering said'machine, means for operating said road working'tool, and a pair of elongated frames, one of said frames supporting said power plant and the other supporting said steering and operating means.

5. In a road machine, a road workin tool therefor, mechanism for operating sai tool, a power plant for driving said machine, and a pair of elon ated frames for said machine, one of said rames supporting said power plant and the other supporting said operating mechanism.

6. In a road machine, a road working tool therefor, mechanism for operating said tool,y

a power plant for driving said machine, and a pair of independently and removably mounted frames, one of said frames supporting said power plant and the other supporting said operating mechanism. i

7 IIn a road machine, a road working tool therefor, mechanism for adjusting the position of said tool, a power plant for driving said machine, and a pair of elongated frames, eachindependently and removably positioned on said machine, one of said frames supporting said power plant and the other supporting said tool adjusting mechanism.

8. In a road machine, front steering wheels and rear drive wheels therefor, a casting mounted on the axle of said front wheels, a housing for the axle of said -rear wheels, a road working tool located intermediate said front and rear wheels, a power plant for driving said machine, mechanism for steering said machine, mechanism for operating said road working tool, and a. pair of frames mounted on said casting and the rear axle housing, one of said frames supporting said power plant and the other said frames supporting said steering and operating mechanisms.

9. In a road machine, front steering wheels and rear drive wheels therefor, a casting mounted on the axle of said front wheels, a housing for the axle of said rear wheels, a road working tool located intermediate said front and rear wheels, a power plant located at the rear of said machine, means for steering said machine, means for adjustably positloning said road working tool, and a pair of frames independently and removably mounted on the casting and rear axle heus ing, one of said frame supporting said power plant and the other supporting said steering means for said machine and said positioning means for said tool.

In witness whereof, I hereunto subscribe my name to this specification.

WILLIAM T. BEATTY. 

